Doc No. 702105 Page 14 of 16
9. Fault Finding cont.
Power on to control
panel?
Check:
1. Control panel heat on/off
switch position.
2. Element circuit breaker(s)
3. Overheat thermostat.
*
No heat?
YES
If the elements still fail
to operate normally,
please contact
the Nortek
service department.
YES
Check:
1. Power supply.
YES
NO
Elements
NO
Low heat?
Check:
1. Check current load on all
elements. Should be
balanced. If not could be
element(s) open circuit.
* If it is determined that the overheat
thermostat has tripped it will be necessary to
remove the blanking plug located on the top
face of the element housing to enable
resetting. (See Diagram 7 in section 7 of this
manual).
This MUST be done with the electrical
supply to the air curtain turned OFF.
